Touch substrate, display module and display device

Abstract

The invention provides a touch substrate, a display module and a display device, and the touch substrate comprises a substrate which is provided with a touch area and a non-touch area adjacent to the touch area, and the non-touch area is provided with a bonding area; the touch electrode group and the floating metal unit are arranged in the touch area, and the touch electrode group comprises a plurality of touch electrodes; the driving module is arranged in the bonding area; the touch control wire group comprises a plurality of touch control wires, and each touch control electrode is connected with the driving module through at least one touch control wire; the driving module comprises a touch control mode and a gesture recognition mode, and in the gesture recognition mode, the floating metal units are configured to be first gesture recognition electrodes. According to the touch substrate, in the gesture recognition mode, the floating metal units are configured to be the first gesture recognition electrodes, additional electrodes are avoided, the cost is reduced, meanwhile, the thickness of the touch substrate is prevented from being increased, and a narrow frame can be achieved easily.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a touch substrate, a display module and a display device thereof. Background Art

[0002] Organic Light Emitting Display (OLED) and flat-panel display devices based on technologies such as Light Emitting Diode (LED) have been widely used in various consumer electronic products such as mobile phones, televisions, laptops, desktop computers, etc. due to their advantages such as high image quality, power saving, thin body and wide application range, becoming the mainstream in display devices.

[0003] However, the performance of current display devices needs to be improved. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide a touch substrate that avoids adding additional electrodes and can achieve a narrow frame.

[0005] Based on the above purpose, the present application provides a touch control substrate, which includes:

[0006] A substrate having a touch area and a non-touch area adjacent to the touch area, wherein the non-touch area is provided with a bonding area;

[0007] A touch electrode group and a floating metal unit are arranged in the touch area, and the touch electrode group includes a plurality of touch electrodes;

[0008] A driving module is arranged in the bonding area;

[0009] A touch wiring group, comprising a plurality of touch wirings, wherein each of the touch electrodes is connected to the driving module via at least one touch wiring;

[0010] The driving module includes a touch mode and a gesture recognition mode. In the gesture recognition mode, the floating metal unit is configured as a first gesture recognition electrode.

[0011] Preferably, in the gesture recognition mode, at least part of the touch control traces are configured as second gesture recognition electrodes.

[0012] Preferably, the touch control substrate further includes:

[0013] A multiplexer unit, through which at least part of the touch control wiring is connected to the driving module;

[0014] In the touch mode, the multiplexer unit is disconnected;

[0015] In the gesture recognition mode, the multiplexer unit is closed, and the touch lines connected to the multiplexer unit are all connected and configured as second gesture recognition electrodes;

[0016] Preferably, each of the touch control lines is connected to the driving module via the multiplexer unit.

[0017] Preferably, the multiplexer unit is integrated inside the driving module.

[0018] Preferably, in the gesture recognition mode, at least part of the touch traces and their corresponding touch electrodes are simultaneously configured as second gesture recognition electrodes.

[0019] Preferably, the touch control substrate further includes:

[0020] A plurality of first switch units, wherein the touch electrodes are all connected to the corresponding touch wirings through the first switch units;

[0021] In the touch control mode, the first switch unit is closed; in the gesture recognition mode, the first switch unit is opened, and at least part of the touch control traces are configured as second gesture recognition electrodes;

[0022] Preferably, in the gesture recognition mode, the first switch unit is turned off, and at least part of the touch lines and their corresponding touch electrodes are configured as second gesture recognition electrodes at the same time.

[0023] Preferably, in the gesture recognition mode, the driving module is connected to the floating metal unit;

[0024] In the touch control mode, the driving module cuts off the connection with the floating metal unit;

[0025] Preferably, the touch control substrate further includes:

[0026] A second switch unit, the floating metal unit is connected to the driving module through the second switch unit, and in the touch mode, the second switch unit is disconnected;

[0027] In the gesture recognition mode, the second switch unit is closed, and the floating metal unit is configured as a first gesture recognition electrode.

[0028] Preferably, the floating metal unit comprises a plurality of floating metal blocks, and adjacent floating metal blocks are connected by connecting wires;

[0029] Preferably, the touch control substrate further includes:

[0030] A touch bridge layer, an insulating layer and a touch electrode layer, wherein the insulating layer is located between the touch bridge layer and the touch electrode layer; the touch electrode layer is located on a side of the touch bridge layer away from or close to the substrate;

[0031] Preferably, the connection line is located in the touch bridge layer.

[0032] Preferably, the touch electrode group and the floating metal unit are arranged in the same layer, and the orthographic projections of the touch electrode group and the floating metal unit on the substrate are arranged at intervals without overlapping parts.

[0033] Preferably, the touch electrode group and the floating metal unit are arranged in the touch electrode layer, and the touch electrode group and the floating metal unit are insulated from each other;

[0034] Preferably, the touch electrode group includes a plurality of first touch electrodes extending along a first direction and a plurality of second touch electrodes extending along a second direction, and the first direction intersects with the second direction;

[0035] Preferably, the touch bridging layer is provided with a connecting bridge, and two adjacent first touch electrodes or two adjacent second touch electrodes are connected to the connecting bridge through a via hole.

[0036] Based on the same inventive concept, the present application also discloses a display module, which includes the above-mentioned touch substrate.

[0037] Based on the same inventive concept, the present application also discloses a display device, which includes the above-mentioned display module.

[0038] Compared with the prior art, the touch substrate provided in the present application configures the floating metal unit as the first gesture recognition electrode in the gesture recognition mode, thereby avoiding the addition of additional electrodes and reducing costs. At the same time, it avoids increasing the thickness of the touch substrate and is conducive to achieving a narrow frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 is a schematic diagram of a related display panel;

[0041] Figure 2 A schematic diagram of the structure of a touch control substrate provided in one embodiment of the present application;

[0042] Figure 3A schematic diagram of the structure of a first gesture recognition electrode provided in an embodiment of the present application;

[0043] Figure 4 A schematic diagram of the structure of a second gesture recognition electrode provided in an embodiment of the present application;

[0044] Figure 5 A schematic structural diagram of a touch control substrate provided in another embodiment of the present application;

[0045] Figure 6 A schematic diagram of the structure of a second gesture recognition electrode provided in another embodiment of the present application;

[0046] Figure 7 A schematic diagram of the structure of a touch control unit provided in another embodiment of the present application;

[0047] Figure 8 A schematic diagram of a connection structure of a floating metal block provided in another embodiment of the present application;

[0048] Fig. 9 A schematic diagram of the hierarchical structure of a touch control substrate provided in one embodiment of the present application.

[0049] Marking Description:

[0050] 1. Substrate; 11. Touch area; 12. Non-touch area; 121. Bonding area; 13. Long strip of metal;

[0051] 2. touch electrode group; 21. first touch electrode; 22. second touch electrode;

[0052] 3. Floating metal unit; 31. Floating metal block; 32. Connecting wire;

[0053] 4. Driver module;

[0054] 5. Touch control wiring;

[0055] 61. A first gesture recognition electrode; 62. A second gesture recognition electrode;

[0056] 7. Multiplexer unit;

[0057] 8. A first switch unit;

[0058] 91. Touch bridge layer; 92. Insulation layer; 93. Touch electrode layer; 94. Connection bridge. DETAILED DESCRIPTION

[0059] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0060] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0061] With the rapid development of artificial intelligence technology, gesture recognition, as an important part of human-computer interaction, has become a hot topic of research. Gesture recognition technology can convert human movements into instructions that can be understood by the device, thereby achieving the purpose of human-computer interaction. At present, gesture recognition technology has been widely used in smart cars, smart phones, smart home appliances and other products, providing users with a more flexible and natural operation method.

[0062] Currently, capacitive gesture recognition technology is one of the mainstream technologies for gesture recognition. After long-term research, the inventors found that the current capacitive gesture recognition technology usually requires the addition of new electrodes. Figure 1 As shown, a related display panel, which sets a long strip of metal 13 in the non-touch area 12 as a gesture recognition receiving electrode, uses the touch electrode in the touch area 11 as a gesture recognition transmitting electrode, and completes the gesture recognition action by detecting the change of the electrostatic field, resulting in a larger frame of the display panel, which is difficult to meet the current narrow frame requirements. At the same time, it causes the product thickness to increase, increasing the difficulty and cost of preparation. Based on this, the present application provides a panel solution, see the following embodiments for details.

[0063] Reference Figure 2 As shown, an embodiment of the present application discloses a touch substrate, including a substrate 1, a touch electrode group 2, a floating metal unit 3, a driving module 4 and a touch wiring group.

[0064] The substrate 1 has a touch area 11 and a non-touch area 12 adjacent to the touch area 11, and the non-touch area 12 is provided with a bonding area 121; the touch electrode group 2 and the floating metal unit 3 are provided in the touch area 11, and the touch electrode group 2 includes a plurality of touch electrodes; the driving module 4 is provided in the bonding area 121; the touch wiring group includes a plurality of touch wirings 5, and each touch electrode is connected to the driving module 4 through at least one touch wiring 5. Optionally, the driving module includes a driving control chip.

[0065] The driving module 4 includes a touch mode and a gesture recognition mode. In the gesture recognition mode, the floating metal unit 3 is configured as a first gesture recognition electrode 61. Figure 3 shown.

[0066] The touch substrate provided in this embodiment configures the floating metal unit 3 as the first gesture recognition electrode 61 in the gesture recognition mode, thereby avoiding the need to add additional electrodes and reducing costs. At the same time, it avoids increasing the thickness of the touch substrate and is conducive to achieving a narrow frame.

[0067] Reference Figure 4 As shown, in one embodiment, in the gesture recognition mode, at least part of the touch traces 5 are configured as second gesture recognition electrodes 62, and the second gesture recognition electrodes 62 are used to form a capacitor with the first gesture recognition electrodes 61, thereby realizing the gesture recognition function. The first gesture recognition electrode 61 is arranged in the touch area 11, and the second gesture recognition electrode 62 is arranged in the non-touch area 12. The second gesture recognition electrode 62 surrounds the first gesture recognition electrode 61, and the electric field strength formed therebetween is relatively large, thereby ensuring better signal quality.

[0068] Optionally, the first gesture recognition electrode 61 is a transmitting electrode, and the second gesture recognition electrode 62 is a receiving electrode; or, the first gesture recognition electrode 61 is a receiving electrode, and the second gesture recognition electrode 62 is a transmitting electrode.

[0069] Please continue to refer to Figure 2 and 4 As shown, in one embodiment, the touch substrate further includes a multiplexer unit 7, and at least part of the touch lines 5 are connected to the driving module 4 through the multiplexer unit 7; in the touch mode, the multiplexer unit 7 is disconnected; in the gesture recognition mode, the multiplexer unit 7 is closed, and all the touch lines 5 connected to the multiplexer unit 7 are connected and configured as the second gesture recognition electrode 62. Specifically, in the touch mode, the multiplexer unit 7 is disconnected, and the touch lines 5 connected to the multiplexer unit 7 have no intersection, and each realizes the touch function; in the gesture recognition mode, the multiplexer unit 7 is closed, and all the touch lines 5 connected to the multiplexer unit 7 are connected together to form a whole electrode, which serves as the second gesture recognition electrode 62.

[0070] In one embodiment, each touch line 5 is connected to the driving module 4 through a multiplexer unit 7; that is, in the gesture recognition mode, all touch lines 5 are connected together to form a whole electrode. Preferably, the multiplexer unit 7 is integrated inside the driving module 4, which can reduce space occupation and improve product integration.

[0071] Reference Figure 5 As shown, in one embodiment, the touch substrate further includes a plurality of first switch units 8, and the touch electrodes are all connected to the corresponding touch traces 5 through the first switch units 8; in the touch mode, the first switch unit 8 is closed; in the gesture recognition mode, the first switch unit 8 is disconnected, and at least part of the touch traces 5 are configured as the second gesture recognition electrodes 62. Specifically, in the gesture recognition mode, at least part of the touch traces 5 are disconnected from the touch electrodes, and only the touch traces 5 are used as the second gesture recognition electrodes 62. The second gesture recognition electrodes 62 surround the first gesture recognition electrodes 61, and the electric field strength formed between the two is relatively large, thereby ensuring better signal quality. In the touch mode, the first switch unit 8 is closed, and the touch traces 5 are connected to the corresponding touch electrodes, thereby realizing the touch function. Preferably, in the gesture recognition mode, the first switch unit 8 is closed, and at least part of the touch traces 5 and their corresponding touch electrodes are simultaneously configured as the second gesture recognition electrodes 62, thereby realizing the gesture recognition function. Optionally, the first switch unit 8 includes a TFT switch, etc.

[0072] Reference Figure 6 As shown, in one embodiment, at least part of the touch lines 5 and their corresponding touch electrodes are configured as the second gesture recognition electrodes 62 at the same time, that is, there is no need to add the first switch unit 8. The gesture recognition function can be realized by configuring at least part of the touch lines 5 and their corresponding touch electrodes as the second gesture recognition electrodes 62 at the same time. Compared with setting the first switch unit 8, the use of components can be reduced.

[0073] In one of the embodiments, in the gesture recognition mode, the driving module 4 is connected to the floating metal unit 3; in the touch mode, the driving module 4 cuts off the connection with the floating metal unit 3; that is, no additional switch is set between the driving module 4 and the floating metal unit 3, and the conduction and disconnection between the driving module 4 and the floating metal unit 3 are directly realized through the driving module 4.

[0074] In another embodiment, the touch substrate further includes a second switch unit, and the floating metal unit 3 is connected to the driving module 4 through the second switch unit. In the touch mode, the second switch unit is disconnected, and the disconnection and conduction between the driving module 4 and the floating metal unit 3 are achieved by opening and closing the second switch unit. Optionally, the second switch unit includes a TFT switch, etc.

[0075] In the gesture recognition mode, the second switch unit is closed, and the floating metal unit 3 is configured as the first gesture recognition electrode 61 .

[0076] Reference Figure 7 and 8 As shown, in one embodiment, the floating metal unit 3 includes a plurality of floating metal blocks 31, and adjacent floating metal blocks 31 are connected by connecting wires 32; wherein, the plurality of floating metal blocks 31 form a whole electrode after being connected, which serves as the first gesture recognition electrode 61, and the existing floating metal blocks in the touch substrate are used as the first gesture recognition electrode 61, without the need to add additional electrodes.

[0077] Reference Fig. 9 As shown, in one embodiment, the touch substrate further includes a touch bridging layer 91, an insulating layer 92 and a touch electrode layer 93, wherein the insulating layer 92 is located between the touch bridging layer 91 and the touch electrode layer 93; the touch electrode layer 93 is located on a side of the touch bridging layer 91 away from or close to the substrate 1; wherein the touch electrode layer 93 is used to set the touch electrodes, the touch bridging layer 91 is used to bridge the touch electrodes that need to be bridged, and the insulating layer 92 serves to insulate the touch bridging layer 91 and the touch electrode layer 93.

[0078] In one embodiment, the connection line 32 is located in the touch bridge layer 91 , that is, the floating metal block 31 also needs to be bridged, and the bridge also utilizes the touch bridge layer 91 .

[0079] In one embodiment, the touch electrode group 2 and the floating metal unit 3 are arranged in the same layer, and the orthographic projections of the touch electrode group 2 and the floating metal unit 3 on the substrate 1 are arranged at intervals and have no overlapping parts, that is, the floating metal unit 3 is embedded in the touch electrode group 2, and the blank area in the touch electrode group 2 is used to avoid occupying the space of the touch electrode group 2, avoid affecting the normal touch function of the touch electrode group 2, and avoid adding a new film layer structure. Furthermore, the touch electrode group 2 and the floating metal unit 3 are arranged in the touch electrode layer 93, and the touch electrode group 2 and the floating metal unit 3 are insulated to avoid adding a new film layer structure.

[0080] In one embodiment, the touch electrode group 2 includes a plurality of first touch electrodes 21 extending along a first direction (such as the X direction in the figure) and a plurality of second touch electrodes 22 extending along a second direction (such as the Y direction in the figure), and the first direction and the second direction intersect; optionally, the first direction and the second direction are perpendicular. Preferably, the first touch electrode 21 is a receiving electrode, which adopts a single-end drive, that is, one end is connected to the driving module 4 through the touch wiring 5, and the second touch electrode 22 is a transmitting electrode, which adopts a double-end drive, that is, both ends are connected to the driving module 4 through the touch wiring 5. Furthermore, the touch bridging layer 91 is provided with a connecting bridge 94, and two adjacent first touch electrodes 21 or two adjacent second touch electrodes 22 are connected to the connecting bridge 94 through vias.

[0081] Another embodiment of the present application discloses a display module, which includes the touch substrate in the above embodiment.

[0082] The display module provided in this embodiment has a touch substrate in which the floating metal unit is configured as the first gesture recognition electrode in the gesture recognition mode, thereby avoiding the addition of additional electrodes and reducing costs. At the same time, it avoids increasing the thickness of the touch module and is conducive to achieving a narrow frame, thereby improving the performance of the display module.

[0083] Another embodiment of the present application discloses a display device, which includes the display module in the above embodiment. The display device can be on a smart device (such as a mobile phone, VR device, computer, TV, car display, etc.).

[0084] The display device provided in this embodiment has a touch substrate in which the floating metal unit is configured as the first gesture recognition electrode in the gesture recognition mode, thereby avoiding the addition of additional electrodes and reducing costs. At the same time, it avoids increasing the thickness of the touch module and is conducive to achieving a narrow frame, which is conducive to improving the performance of the display device.

[0085] Although the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0086] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0087] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. A touch substrate, characterized in that: include: A substrate having a touch area and a non-touch area adjacent to the touch area, wherein the non-touch area is provided with a bonding area; A touch electrode group and a floating metal unit are arranged in the touch area, and the touch electrode group includes a plurality of touch electrodes; A driving module is arranged in the bonding area; A touch wiring group, comprising a plurality of touch wirings, wherein each of the touch electrodes is connected to the driving module via at least one touch wiring; The driving module includes a touch mode and a gesture recognition mode. In the gesture recognition mode, the floating metal unit is configured as a first gesture recognition electrode.

2. The touch substrate according to claim 1, wherein: In the gesture recognition mode, at least part of the touch control traces are configured as second gesture recognition electrodes.

3. The touch substrate according to claim 2, wherein: The touch control substrate further includes: A multiplexer unit, through which at least part of the touch control wiring is connected to the driving module; In the touch mode, the multiplexer unit is disconnected; In the gesture recognition mode, the multiplexer unit is closed, and the touch lines connected to the multiplexer unit are all connected and configured as second gesture recognition electrodes; Preferably, each of the touch control lines is connected to the driving module via the multiplexer unit; Preferably, the multiplexer unit is integrated inside the driving module.

4. The touch substrate according to claim 2, wherein: In the gesture recognition mode, at least part of the touch traces and their corresponding touch electrodes are simultaneously configured as second gesture recognition electrodes.

5. The touch control substrate according to any one of claims 1 to 3, characterized in that: The touch control substrate further includes: A plurality of first switch units, wherein the touch electrodes are all connected to the corresponding touch wirings through the first switch units; In the touch control mode, the first switch unit is closed; in the gesture recognition mode, the first switch unit is opened, and at least part of the touch control traces are configured as second gesture recognition electrodes; Preferably, in the gesture recognition mode, the first switch unit is turned off, and at least part of the touch lines and their corresponding touch electrodes are configured as second gesture recognition electrodes at the same time.

6. The touch substrate according to claim 1, wherein: In the gesture recognition mode, the driving module is connected to the floating metal unit; In the touch control mode, the driving module cuts off the connection with the floating metal unit; Preferably, the touch control substrate further includes: A second switch unit, the floating metal unit is connected to the driving module through the second switch unit, and in the touch mode, the second switch unit is disconnected; In the gesture recognition mode, the second switch unit is closed, and the floating metal unit is configured as a first gesture recognition electrode.

7. The touch substrate according to claim 1, wherein: The floating metal unit includes a plurality of floating metal blocks, and adjacent floating metal blocks are connected by connecting wires; Preferably, the touch control substrate further includes: A touch bridge layer, an insulating layer and a touch electrode layer, wherein the insulating layer is located between the touch bridge layer and the touch electrode layer; the touch electrode layer is located on a side of the touch bridge layer away from or close to the substrate; Preferably, the connection line is located in the touch bridge layer; Preferably, the touch electrode group and the floating metal unit are arranged in the same layer, and the orthographic projections of the touch electrode group and the floating metal unit on the substrate are arranged at intervals without overlapping parts.

8. The touch substrate according to claim 7, wherein: The touch electrode group and the floating metal unit are arranged on the touch electrode layer, and the touch electrode group and the floating metal unit are insulated from each other; Preferably, the touch electrode group includes a plurality of first touch electrodes extending along a first direction and a plurality of second touch electrodes extending along a second direction, and the first direction intersects with the second direction; Preferably, the touch bridging layer is provided with a connecting bridge, and two adjacent first touch electrodes or two adjacent second touch electrodes are connected to the connecting bridge through a via hole.

9. A display module, characterized in that: It comprises the touch control substrate as described in any one of claims 1 to 8.

10. A display device, characterized in that: Comprising the display module as claimed in claim 9.

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